What is inside an Arduino?


Specification

There are many different types of Arduino boards available. The most common board is the Arduino Uno. The Arduino Uno consits of the following components

  • Processor: 16 Mhz ATmega328
  • Flash memory: 32 KB
  • Ram: 2kb
  • Number of analog inputs: 6
  • Number of digital I/O: 14 (6 of them pwm)
  • Power regulator: 7-12V input voltage regulated to 5V.

The operating voltage of the ATmega328 microcontroller is 5V.

arduino uno
Figure 1 - Arduino Uno

The Arduino board is based on the ATmega328. It adds some simple components to make it easy to work with this microcontroller. If you would like to build the board yourself check out the following links to find out how to create the various components.

Components on the Arduino Uno Board


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